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Rule Fog Hunter

Delft - Fog Hunter - The Netherlands

Delft, South Holland, The Netherlands

Thick, moody fog for atmospheric forest and landscape shots

No opportunities right now
Here’s what usually blocks matches

No Fog Hunter opportunities in the next 14 days

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Rule requirements (key thresholds)
Fog Probability · ≥ 60.0%

Tip: Scroll down to the 72-hour table to see exactly which condition fails hour by hour.

Most common blockers (next 72 hours)
Fog Probability 100% failing

Currently

Real-time conditions
Fog Probability
0%
Dewpoint Spread8.8°C
Visibility24135 (Clear)
Relative Humidity56%
Wind Speed3.1m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Amsterdam

No opportunities in the next 10 days

See the blocker timeline below to understand which conditions are preventing matches.

What this forecast looks for

Plain-language explanation from the rule

The Netherlands' unique below-sea-level geography creates exceptional fog conditions as the polder landscape—land reclaimed from the sea—traps cold, moist air in natural depressions. This creates persistent valley fog and radiation fog that transforms windmills and waterways into ethereal scenes.

Kinderdijk's 19 UNESCO windmills rising from morning mist create one of photography's most iconic Dutch scenes. The flat terrain and extensive water networks mean fog forms readily on calm, clear nights and can persist well into morning. Marken's historic harbor on the Markermeer lake experiences frequent sea fog rolling in from the IJsselmeer.

What makes Dutch fog photography exceptional:

  • Windmill emergence - Historic structures appearing gradually as fog lifts from polder basins
  • Canal diffusion - Amsterdam and Leiden's canals create soft, atmospheric street scenes in fog
  • Flat persistence - Lack of topography means fog lingers longer than in hilly regions
  • Autumn reliability - October-November offer most consistent radiation fog conditions

Best fog occurs on calm, clear nights following daytime warmth—typically spring and autumn. Arrive before sunrise to catch densest conditions. The polders around Kinderdijk, Zaanse Schans windmills north of Amsterdam, and the Alblasserwaard region are prime locations. Fog typically burns off by 10-11 AM as temperatures rise.

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72-hour requirements breakdown

What passed or failed, hour by hour
0matching hours in the next 95 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/Amsterdam
Fog Probability
≥ 60.0%
Wed, Apr 8
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
23:000%
Thu, Apr 9
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
08:000%
09:000%
10:000%
11:000%
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15:000%
16:000%
17:000%
18:000%
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23:000%
Fri, Apr 10
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
08:000%
09:000%
10:000%
11:000%
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23:000%
Sat, Apr 11
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
08:000%
09:000%
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Sun, Apr 12
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity).

What does Fog Probability mean?

Inputs that drive the score

This derived score summarizes multiple raw weather signals. The table below shows the supporting inputs hour by hour, so you can see what's pushing the score up or down.

Time
Europe/Amsterdam
Clear Sky Probability (Ensemble)
%
Dew Point
°C
Rainfall
mm
Relative Humidity
%
Snowfall
cm
Solar Elevation
°
Temperature
°C
Total Precipitation
mm
Vapor Pressure Deficit
kPa
Visibility
m
Wind Gusts
m/s
Wind Speed
m/s
Thu, Apr 9 Sunrise 06:59 Sunset 20:29
10:00
3% 5.5°C 0mm 56% 0cm 26° 14°C 0mm 0.72kPa 24135m 4.7m/s 3.1m/s
11:00
4% 7.1°C 0mm 56% 0cm 34° 16°C 0mm 0.8kPa 24134m 4.8m/s 3.2m/s
12:00
3% 8.2°C 0mm 57% 0cm 41° 17°C 0mm 0.83kPa 24135m 4.8m/s 3.2m/s
13:00
3% 8.5°C 0mm 55% 0cm 45° 18°C 0mm 0.9kPa 24134m 5.1m/s 3.7m/s
14:00
2% 8.4°C 0mm 54% 0cm 46° 18°C 0mm 0.94kPa 24134m 5.4m/s 3.7m/s
15:00
2% 8.8°C 0mm 54% 0cm 43° 18°C 0mm 0.95kPa 24135m 5.5m/s 4m/s
16:00
3% 9.2°C 0mm 58% 0cm 38° 17°C 0mm 0.82kPa 24135m 6m/s 4.3m/s
17:00
3% 10°C 0mm 69% 0cm 30° 16°C 0.25mm 0.56kPa 17667m 6.1m/s 3.7m/s
18:00
2% 10°C 0mm 72% 0cm 22° 15°C 0.56mm 0.49kPa 7564m 4.8m/s 2.7m/s
19:00
1% 10°C 0mm 73% 0cm 13° 15°C 0.63mm 0.46kPa 7774m 4.9m/s 2.9m/s
20:00
0% 10°C 0mm 80% 0cm 3.9° 14°C 0.81mm 0.31kPa 5459m 6.3m/s 4.1m/s
21:00 ☾
0% 11°C 0.07mm 89% 0cm -5.2° 13°C 0.56mm 0.17kPa 5550m 5.2m/s 3.6m/s
22:00 ☾
0% 10°C 0mm 89% 0cm -13° 12°C 0.81mm 0.15kPa 19339m 12m/s 5.1m/s
23:00 ☾
0% 7.4°C 0.12mm 86% 0cm -21° 9.6°C 0.81mm 0.16kPa 24134m 15m/s 10m/s
Fri, Apr 10 Sunrise 06:59 Sunset 20:29
24:00 ☾
0% 6.4°C 0mm 83% 0cm -26° 9.1°C 0.88mm 0.19kPa 24134m 13m/s 7.3m/s
01:00 ☾
0% 5.8°C 0mm 82% 0cm -29° 8.7°C 0.88mm 0.2kPa 24135m 12m/s 7.5m/s
02:00 ☾
0% 5.2°C 0mm 82% 0cm -30° 8.2°C 0.88mm 0.2kPa 24134m 12m/s 7.5m/s
03:00 ☾
12% 4.5°C 0mm 78% 0cm -28° 8.1°C 0mm 0.23kPa 24135m 11m/s 7.6m/s
04:00 ☾
25% 3.5°C 0mm 73% 0cm -23° 7.9°C 0mm 0.28kPa 24135m 11m/s 7m/s
05:00 ☾
37% 2.5°C 0mm 70% 0cm -17° 7.7°C 0mm 0.32kPa 24135m 11m/s 7.8m/s
06:00 ☾
31% 2°C 0mm 68% 0cm -9.1° 7.6°C 0mm 0.33kPa 24134m 9.1m/s 6.7m/s
07:00
24% 2.5°C 0mm 73% 0cm 0.14° 7.1°C 0mm 0.27kPa 24135m 8m/s 5.8m/s
08:00
18% 2.6°C 0mm 73% 0cm 8.8° 7.2°C 0mm 0.27kPa 24135m 6.8m/s 4.9m/s
09:00
12% 2.4°C 0mm 69% 0cm 18° 7.7°C 0mm 0.32kPa 24134m 5.5m/s 4.5m/s
10:00
6% 1.9°C 0.01mm 66% 0cm 27° 7.8°C 0mm 0.36kPa 24134m 4.8m/s 4.1m/s
11:00
0% 1.7°C 0mm 65% 0cm 35° 8°C 0.06mm 0.38kPa 24135m 3.3m/s 3m/s
12:00
0% 1.7°C 0mm 63% 0cm 41° 8.3°C 0.06mm 0.4kPa 24135m 2.5m/s 2.4m/s
13:00
0% 1.6°C 0mm 61% 0cm 45° 8.7°C 0.06mm 0.44kPa 24135m 1.8m/s 2.2m/s
14:00
0% 1.4°C 0mm 57% 0cm 46° 9.3°C 0.06mm 0.5kPa 24135m 1.6m/s 2.5m/s
15:00
10% 1.4°C 0mm 56% 0cm 43° 9.8°C 0mm 0.53kPa 24135m 2m/s 3.3m/s
16:00
20% 1.5°C 0mm 56% 0cm 38° 9.8°C 0mm 0.53kPa 24134m 2.1m/s 3.3m/s
17:00
30% 1.5°C 0mm 57% 0cm 31° 9.6°C 0mm 0.51kPa 24135m 2.1m/s 3.1m/s
18:00
23% 1.4°C 0mm 58% 0cm 22° 9.3°C 0mm 0.49kPa 24134m 1.6m/s 2.5m/s
19:00
15% 1.5°C 0mm 59% 0cm 13° 9°C 0mm 0.47kPa 24135m 0.92m/s 2m/s
20:00
8% 1.4°C 0mm 60% 0cm 4.1° 8.6°C 0mm 0.44kPa 24134m 1.2m/s 1.2m/s
21:00 ☾
6% 1.4°C 0mm 61% 0cm -4.9° 8.5°C 0mm 0.43kPa 24135m 1.9m/s 1.2m/s
22:00 ☾
3% 1.7°C 0mm 62% 0cm -13° 8.6°C 0mm 0.43kPa 24135m 3.3m/s 2.2m/s
23:00 ☾
1% 2.1°C 0mm 64% 0cm -20° 8.4°C 0mm 0.39kPa 24134m 5.3m/s 3.3m/s
Sat, Apr 11 Sunrise 06:57 Sunset 20:31
24:00 ☾
1% 2.2°C 0mm 66% 0cm -26° 8.2°C 0mm 0.37kPa 24135m 7m/s 3.4m/s
01:00 ☾
0% 2.2°C 0mm 65% 0cm -29° 8.4°C 0mm 0.39kPa 24135m 8.5m/s 3.6m/s
02:00 ☾
0% 2.2°C 0mm 64% 0cm -30° 8.7°C 0mm 0.41kPa 24134m 9.1m/s 4m/s
03:00 ☾
1% 2°C 0mm 64% 0cm -28° 8.5°C 0mm 0.4kPa 24135m 9.7m/s 4m/s
04:00 ☾
2% 1.5°C 0mm 62% 0cm -23° 8.4°C 0mm 0.42kPa 24134m 11m/s 4.9m/s
05:00 ☾
3% 1.1°C 0mm 60% 0cm -17° 8.3°C 0mm 0.43kPa 24135m 11m/s 5.3m/s
06:00 ☾
2% 1.4°C 0mm 62% 0cm -8.7° 8.2°C 0mm 0.41kPa 24134m 11m/s 4.5m/s
07:00
1% 1.6°C 0mm 63% 0cm 0.42° 8.2°C 0mm 0.41kPa 24135m 11m/s 4.7m/s
08:00
0% 1.8°C 0mm 62% 0cm 9.2° 8.7°C 0mm 0.43kPa 24135m 12m/s 5.8m/s
09:00
0% 2.2°C 0mm 60% 0cm 18° 9.7°C 0mm 0.48kPa 24134m 13m/s 6.1m/s
10:00
0% 2.7°C 0mm 58% 0cm 27° 11°C 0mm 0.54kPa 24134m 13m/s 6.4m/s
11:00
0% 3.1°C 0mm 56% 0cm 35° 12°C 0mm 0.59kPa 24134m 13m/s 6.4m/s
12:00
0% 3.8°C 0mm 50% 0cm 42° 14°C 0mm 0.79kPa 24135m 12m/s 7m/s
13:00
1% 5.6°C 0mm 51% 0cm 46° 16°C 0mm 0.88kPa 23130m 13m/s 7.4m/s
14:00
1% 8.9°C 0.03mm 62% 0cm 46° 16°C 0.13mm 0.71kPa 16286m 13m/s 7.3m/s
15:00
1% 7.2°C 0.02mm 65% 0cm 44° 14°C 0.23mm 0.55kPa 18902m 11m/s 6.3m/s
16:00
0% 5.4°C 0.02mm 68% 0cm 38° 11°C 0.33mm 0.41kPa 21519m 9.9m/s 5.3m/s
17:00
0% 3.6°C 0.01mm 72% 0cm 31° 8.4°C 0.44mm 0.31kPa 24135m 8.4m/s 4.3m/s
18:00
0% 3.1°C 0.007mm 71% 0cm 23° 8°C 0.44mm 0.31kPa 24135m 8.3m/s 4m/s
19:00
0% 2.6°C 0.003mm 71% 0cm 13° 7.6°C 0.44mm 0.31kPa 24135m 8.2m/s 3.6m/s
20:00
0% 2.2°C 0mm 70% 0cm 4.4° 7.2°C 0.44mm 0.3kPa 24135m 8m/s 3.3m/s
21:00 ☾
4% 1.9°C 0mm 71% 0cm -4.7° 6.8°C 0.29mm 0.29kPa 24135m 8.6m/s 3.4m/s
22:00 ☾
9% 1.6°C 0mm 72% 0cm -13° 6.4°C 0.15mm 0.27kPa 24135m 9.1m/s 3.5m/s
23:00 ☾
13% 1.4°C 0mm 72% 0cm -20° 6°C 0mm 0.26kPa 24135m 9.6m/s 3.5m/s
Sun, Apr 12 Sunrise 06:55 Sunset 20:33
24:00 ☾
14% 1.5°C 0mm 72% 0cm -25° 6°C 0mm 0.26kPa 24135m 10m/s 3.8m/s
01:00 ☾
14% 1.6°C 0mm 73% 0cm -29° 6.1°C 0mm 0.26kPa 24135m 10m/s 4.1m/s
02:00 ☾
15% 1.7°C 0mm 73% 0cm -29° 6.2°C 0mm 0.26kPa 24135m 11m/s 4.4m/s
03:00 ☾
21% 2°C 0mm 69% 0cm -27° 7.5°C 0mm 0.33kPa 24135m 9.7m/s 4.7m/s
04:00 ☾
28% 2.3°C 0mm 64% 0cm -23° 8.7°C 0mm 0.4kPa 24135m 8.7m/s 5m/s
05:00 ☾
34% 2.6°C 0mm 60% 0cm -16° 9.9°C 0mm 0.49kPa 24135m 7.7m/s 5.3m/s
06:00 ☾
31% 2.8°C 0.003mm 58% 0cm -8.4° 11°C 0mm 0.55kPa 24135m 7.7m/s 5.4m/s
07:00
28% 3°C 0.007mm 55% 0cm 0.7° 12°C 0mm 0.62kPa 24135m 7.6m/s 5.4m/s
08:00
25% 3.2°C 0.01mm 52% 0cm 9.5° 13°C 0mm 0.69kPa 24135m 7.5m/s 5.4m/s
09:00
25% 3.2°C 0.007mm 53% 0cm 19° 13°C 0.02mm 0.69kPa 24135m 7.4m/s 5.5m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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